Arthritis and injury grind down millions of joints, but few get the best remedy — real biological tissue. Kevin Stone shows a treatment that sidesteps the high costs and donor shortfall of human-to-human transplants with a novel use of animal tissue. (Recorded at TED University 2010, February 2010 in Long Beach, CA. Duration: 6:52)

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In this moving yet pragmatic talk, Kevin Bales explains the business of modern slavery, a multibillion-dollar economy that underpins some of the worst industries on earth. He shares stats and personal stories from his on-the-ground research — and names the price of freeing every slave on earth right now. (Recorded at TED2010, February 2010 in […]

Oceanographer Greg Stone tells the story of how he helped the Republic of Kiribati create an enormous protected area in the middle of the Pacific — protecting fish, sealife and the island nation itself. (Recorded aboard Mission Blue Voyage, April 2010 in Galapagos, Ecuador. Duration: 17:15) While TED.com is down today — find this talk […]